%0 Journal Article %A N. Parhi %A S. Parhi %T On the behaviour of solutions of the differential equations $(r(t)y'')' + q(t)(y')^β + p(t)y^α = f(t)$ %J Annales Polonici Mathematici %D 1986 %P 137-148 %V 47 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/ap-47-2-137-148/ %R 10.4064/ap-47-2-137-148 %G en %F 10_4064_ap_47_2_137_148